diff --git a/src/osgPlugins/osga/OSGA_Archive.h b/src/osgPlugins/osga/OSGA_Archive.h
index 80b34065e..778d3d345 100644
--- a/src/osgPlugins/osga/OSGA_Archive.h
+++ b/src/osgPlugins/osga/OSGA_Archive.h
@@ -151,7 +151,7 @@ class OSGA_Archive : public osgDB::Archive
         /** Functor used in internal implementations.*/
         struct ReadFunctor
         {
-            ReadFunctor(const std::string& filename, const ReaderWriter::Options* options):
+            ReadFunctor(const std::string& filename, const osgDB::ReaderWriter::Options* options):
                 _filename(filename),
                 _options(options) {}
 
@@ -159,7 +159,7 @@ class OSGA_Archive : public osgDB::Archive
             virtual osgDB::ReaderWriter::ReadResult doRead(osgDB::ReaderWriter& rw, std::istream& input) const = 0;
 
             std::string _filename;
-            const ReaderWriter::Options* _options;
+            const osgDB::ReaderWriter::Options* _options;
         };
         
         struct ReadObjectFunctor;
@@ -170,7 +170,7 @@ class OSGA_Archive : public osgDB::Archive
         /** Functor used in internal implementations.*/
         struct WriteFunctor
         {
-            WriteFunctor(const std::string& filename, const ReaderWriter::Options* options):
+            WriteFunctor(const std::string& filename, const osgDB::ReaderWriter::Options* options):
                 _filename(filename),
                 _options(options) {}
 
@@ -178,7 +178,7 @@ class OSGA_Archive : public osgDB::Archive
             virtual osgDB::ReaderWriter::WriteResult doWrite(osgDB::ReaderWriter& rw, std::ostream& output) const = 0;
 
             std::string _filename;
-            const ReaderWriter::Options* _options;
+            const osgDB::ReaderWriter::Options* _options;
         };
 
         struct WriteObjectFunctor;
@@ -187,8 +187,8 @@ class OSGA_Archive : public osgDB::Archive
         struct WriteNodeFunctor;
 
 
-        ReaderWriter::ReadResult read(const ReadFunctor& readFunctor);
-        ReaderWriter::WriteResult write(const WriteFunctor& writeFunctor);
+        osgDB::ReaderWriter::ReadResult read(const ReadFunctor& readFunctor);
+        osgDB::ReaderWriter::WriteResult write(const WriteFunctor& writeFunctor);
     
         typedef std::list< osg::ref_ptr<IndexBlock> >   IndexBlockList;
         
diff --git a/src/osgPlugins/osga/ReaderWriterOSGA.cpp b/src/osgPlugins/osga/ReaderWriterOSGA.cpp
index 5288251bb..cf1b623d9 100644
--- a/src/osgPlugins/osga/ReaderWriterOSGA.cpp
+++ b/src/osgPlugins/osga/ReaderWriterOSGA.cpp
@@ -58,7 +58,7 @@ public:
         if (!result.validArchive()) return result;
 
 
-        osg::ref_ptr<ReaderWriter::Options> local_options = new ReaderWriter::Options;
+        osg::ref_ptr<osgDB::ReaderWriter::Options> local_options = new osgDB::ReaderWriter::Options;
         local_options->setDatabasePath(file);
 
         ReadResult result_2 = result.getArchive()->readImage(result.getArchive()->getMasterFileName(),local_options.get());
@@ -78,7 +78,7 @@ public:
         if (!result.validArchive()) return result;
 
 
-        osg::ref_ptr<ReaderWriter::Options> local_options = new ReaderWriter::Options;
+        osg::ref_ptr<osgDB::ReaderWriter::Options> local_options = new osgDB::ReaderWriter::Options;
         local_options->setDatabasePath(file);
 
         ReadResult result_2 = result.getArchive()->readNode(result.getArchive()->getMasterFileName(),local_options.get());